Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.
The desire for a just society is a permanent part of the human condition.
最好的投资是那些能把小企业做大的人。
我们需要找到方法使能源储存更高效和可持续。
User needs are the driving force behind our progress.
Man is least himself when he talks in his own person. Give him a mask, and he will tell you the truth.